Yao Is 45 Years Old

question 43

Multiple Choice

Yao is 45 years old.How has the maximum vital capacity of his lungs changed from when he was 25?

• A) It has decreased by about 10 percent.
• B) It has decreased by about 20 percent.
• C) It has remained constant.
• D) It has increased by about 10 percent.

---

Definitions:

Complex Documents

Documents that have a complicated structure or content, often requiring specialized knowledge to understand.

Proofreading Stage

The final step in the writing process, focusing on correcting grammatical, punctuation, spelling, and formatting errors.

Grammar

The set of rules that governs the structure of sentences in a language, including syntax, morphology, and punctuation.